Cylindrical lithium ion battery disassembling device

Abstract

The utility model discloses a cylindrical lithium ion battery disassembling device which comprises a positioning component, a positioning clamping mechanism and a rotating mechanism, wherein the positioning clamping mechanism is used for positioning and clamping a cylindrical lithium ion battery, and the rotating mechanism can drive the positioning clamping mechanism to rotate; the cutting assembly comprises a knife rest and a driving mechanism, the driving mechanism drives the knife rest to move close to or away from the cylindrical lithium ion battery through a sliding structure, two blades parallel in the height direction are installed at the free end of the knife rest, the distance between the two blades is adjustable so as to adjust the cutting thickness, and scales are further arranged at the installation positions of the blades located on the knife rest. Therefore, the cutting thickness can be accurately mastered, direct contact between the positive electrode and the negative electrode cannot be caused, and the problems of abnormal discharge or liquid spraying fire of the battery pack caused by short circuit are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a cylindrical lithium-ion battery disassembly device. Background Art

[0002] During the production process of lithium-ion batteries, the batteries need to be disassembled and analyzed, and the aluminum shell is cut and removed by a disassembly device. Currently, it is generally held with a vise or directly held by hand, and then the positive terminal seal is torn and plugged with a vise. Not only is it impossible to accurately control the cutting thickness, but also combined with the structural characteristics of the cylindrical lithium-ion battery itself, except for the center part of the positive terminal cover which is the positive electrode, the edge of the cylinder on the same plane as the positive electrode and other exposed shells are negative electrodes, which makes it very easy to cause direct contact between the positive and negative electrodes during the disassembly process, resulting in a short circuit, and then leading to abnormal discharge of the battery pack or spraying and fire. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model provides a cylindrical lithium-ion battery disassembly device.

[0004] The utility model provides a cylindrical lithium-ion battery disassembly device, comprising:

[0005] A positioning assembly, comprising a positioning clamping mechanism for positioning and clamping a cylindrical lithium-ion battery and a rotating mechanism capable of driving the positioning clamping mechanism to rotate;

[0006] The cutting assembly includes a tool holder and a driving mechanism. The driving mechanism drives the tool holder to move closer to or away from the cylindrical lithium-ion battery through a sliding structure. Two blades parallel to each other in the height direction are installed at the free end of the tool holder. The distance between the two blades is adjustable to adjust the cutting thickness. The installation position of the blade on the tool holder is also provided with a scale.

[0007] Preferably, the positioning and clamping mechanism comprises:

[0008] A positioning cylinder, the upper end surface of which is provided with a positioning groove for positioning the cylindrical lithium-ion battery;

[0009] Three clamping jaws, the three clamping jaws are evenly distributed along the circumference of the positioning cylinder;

[0010] The three-claw cylinder is respectively located at the lower ends of the three clamping claws and can respectively drive the three clamping claws to approach or move away from the cylindrical lithium-ion battery to clamp or release the cylindrical lithium-ion battery.

[0011] Preferably, the rotating mechanism comprises:

[0012] A rotating platform, the upper end of which is connected to the lower end of the positioning and clamping mechanism and is used to drive the cylindrical lithium-ion battery to rotate;

[0013] A base is provided with a servo motor I installed in the base, and an output end of the servo motor I is fixed to the lower end of the rotating platform to drive the rotating platform to rotate.

[0014] Preferably, a lifting mechanism is also provided between the rotating platform and the positioning clamping mechanism, the lower end of the lifting mechanism is connected to the rotating platform through a connecting plate, and the upper end is fixed to the lower end of the positioning clamping mechanism, driving the positioning clamping mechanism to rise and fall to adjust the height of the cylindrical lithium-ion battery after positioning.

[0015] Preferably, the sliding structure comprises:

[0016] The slide table extends in the front-to-back direction, and both sides of the slide table are provided with slide rails extending in the front-to-back direction;

[0017] The two sides of the slider extend into the slide rails on the two sides of the slide table to slide respectively, a column is fixed on the upper end of the slider, and the mounting end of the tool holder is fixed on the upper end of the column.

[0018] Preferably, the driving mechanism includes: a servo motor II and a lead screw nut structure, the lead screw is rotatably arranged inside the slide and extends along the length direction of the slide, the nut is fixed at the lower end of the slider, the nut is threadedly connected to the lead screw, the output end of the servo motor II is connected to the lead screw, driving the lead screw to rotate, and the rotational motion is converted into linear motion, thereby driving the slider to slide back and forth in the slide rail, driving the blade to approach or move away from the cylindrical lithium-ion battery.

[0019] In summary, the utility model has the following beneficial effects: first, the cylindrical lithium-ion battery is positioned and clamped by the positioning and clamping mechanism, and the distance between the two parallel blades is adjusted according to the required cutting thickness, and then the driving mechanism drives the knife holder close to the battery until the two parallel blades are tangent to the cylindrical battery, and then the lithium-ion battery is driven to rotate by the rotating mechanism to complete the cutting of the cylindrical battery shell (during operation, the cutting mechanism deepens the cutting depth according to the change of the rotation angle through the servo motor and the control program until the shell thickness is reached, ensuring that the blade will not damage the internal pole piece and diaphragm), and finally the driving mechanism drives the blade to return to the origin, and the positioning and clamping mechanism releases the cylindrical battery cell. In this way, the cutting thickness can be accurately controlled, and the positive electrode and the negative electrode will not be directly contacted, thus avoiding the problem of short circuit, which in turn causes abnormal discharge of the battery pack or liquid spraying and ignition.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a cylindrical lithium-ion battery disassembly device according to an embodiment of the present utility model;

[0022] Figure 2 A top view of a positioning assembly according to an embodiment of the present utility model;

[0023] Figure 3 A three-dimensional diagram of a positioning assembly according to an embodiment of the present utility model;

[0024] Figure 4 This is a structural diagram of a cutting assembly according to an embodiment of the present utility model.

[0025] In the figure:

[0026] 1. Cylindrical lithium-ion battery, 2. Gripper, 3. Three-jaw cylinder, 4. Connecting plate, 5. Rotating platform, 6. Servo motor I, 7. Base, 8. Tool holder, 9. Column, 10. Slide, 11. Blade, 12. Servo motor II, 13. Lifting mechanism, 14. Positioning cylinder, 15. Slider. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] like Figure 1-4 As shown, a cylindrical lithium-ion battery disassembly device proposed in this embodiment includes:

[0029] A positioning assembly, comprising a positioning clamping mechanism for positioning and clamping the cylindrical lithium-ion battery 1 and a rotating mechanism capable of driving the positioning clamping mechanism to rotate;

[0030] The cutting assembly includes a knife holder 8 and a driving mechanism. The driving mechanism drives the knife holder 8 to move closer to or away from the cylindrical lithium-ion battery 1 through a sliding structure. Two blades 11 parallel to each other in the height direction are installed at the free end of the knife holder 8. The distance between the two blades 11 is adjustable to adjust the cutting thickness. The installation position of the blades 11 on the knife holder 8 is also provided with a scale, so as to ensure the stability of the cutting thickness.

[0031] In this way, firstly, the cylindrical lithium-ion battery 1 is positioned and clamped by the positioning and clamping mechanism, and the distance between the two parallel blades 11 is adjusted according to the thickness required for cutting, and then the driving mechanism drives the knife holder 8 to approach the cylindrical lithium-ion battery 1 until the two parallel blades 11 are tangent to the cylindrical lithium-ion battery 1, and then the cylindrical lithium-ion battery 1 is driven to rotate by the rotating mechanism to complete the cutting of the cylindrical lithium-ion battery 1 shell (during operation, the cutting mechanism deepens the cutting depth according to the change of the rotation angle through the servo motor and the control program until the shell thickness is reached, ensuring that the blade 11 will not damage the internal pole piece and diaphragm), and finally the driving mechanism drives the blade 11 to return to the origin, and the positioning and clamping mechanism releases the cylindrical battery cell. In this way, the cutting thickness can be accurately controlled, and the positive electrode and the negative electrode will not be directly contacted, thus avoiding the problem of short circuit, which in turn causes abnormal discharge of the battery pack or liquid spraying and ignition.

[0032] Furthermore, if Figure 3 As shown, the positioning clamping mechanism includes:

[0033] A positioning cylinder 14, whose upper end surface is provided with a positioning groove for positioning the cylindrical lithium-ion battery 1;

[0034] Three clamping jaws 2, the three clamping jaws 2 are evenly distributed along the circumference of the positioning cylinder 14;

[0035] The three-claw cylinder 3 is respectively located at the lower ends of the three clamping jaws 2 and can respectively drive the three clamping jaws 2 to approach or move away from the cylindrical lithium-ion battery 1 to clamp or release the cylindrical lithium-ion battery 1 .

[0036] First, place the cylindrical lithium-ion battery 1 in the positioning groove, then start the three-claw cylinder 3, and the three clamps 2 are respectively installed on the three cylinders, and drive the three clamps 2 to clamp the battery.

[0037] Furthermore, the rotating mechanism comprises:

[0038] The upper end of the rotating platform 5 is connected to the lower end of the positioning clamping mechanism and is used to drive the cylindrical lithium-ion battery 1 to rotate;

[0039] The base 7 has a servo motor Ⅰ6 installed inside. The output end of the servo motor Ⅰ6 is fixed to the lower end of the rotating platform 5 to drive the rotating platform 5 to rotate.

[0040] It should be noted that a lifting mechanism 13 is also provided between the rotating platform 5 and the positioning clamping mechanism. The lower end of the lifting mechanism 13 is connected to the rotating platform 5 through the connecting plate 4, and the upper end is fixed to the lower end of the positioning clamping mechanism, driving the positioning clamping mechanism to rise and fall to adjust the height of the cylindrical lithium-ion battery 1 after positioning. It has a wide range of applications. Specifically, the specific structure of the lifting mechanism 13 can refer to the existing structure, such as an electric cylinder driving the lifting or a combination of a motor and a gear rack structure, etc., depending on the actual situation, and will not be repeated in this article.

[0041] In this embodiment, Figure 4 As shown, the sliding structure includes:

[0042] The slide 10 extends in the front-to-back direction, and both sides of the slide 10 are provided with slide rails extending in the front-to-back direction;

[0043] The slider 15 has two sides that extend into the slide rails on both sides of the slide table 10 for sliding. A column 9 is fixedly disposed on the upper end of the slider 15 , and the mounting end of the tool holder 8 is fixed on the upper end of the column 9 .

[0044] Furthermore, the driving mechanism includes: a servo motor II 12 and a lead screw nut structure, the lead screw is rotatably arranged inside the slide 10 and extends along the length direction of the slide 10, the nut is fixed at the lower end of the slider 15, the nut is threadedly connected to the lead screw, the output end of the servo motor II 12 is connected to the lead screw, driving the lead screw to rotate, and the rotational motion is converted into linear motion, thereby driving the slider 15 to slide back and forth in the slide rail, driving the blade 11 to approach or move away from the cylindrical lithium-ion battery 1.

[0045] In summary, the working process is as follows: the three jaws 2 are driven by the three-jaw cylinder 3 to clamp the cylindrical lithium-ion battery 1 for positioning, and the cylindrical battery is rotated in the X direction, the Y direction, and the XYZ movement direction, and the Z-axis rotation direction is retained; then, the servo motor II 12 is started to drive the tool holder 8 to approach the battery until the two parallel blades 11 are tangent to the cylindrical lithium-ion battery 1; then the servo motor I 6 is started to drive the cylindrical lithium-ion battery 1 to rotate 360°, specifically, rotate more than 3 circles, thereby completing the cutting of the cylindrical lithium-ion battery 1 shell (during operation, the cutter mechanism deepens the cutting depth through the servo motor and the control program according to the change of the rotation angle until the thickness of the shell is reached, to ensure that the blade 11 will not damage the internal pole piece and the diaphragm), and finally the driving mechanism drives the blade 11 to return to the origin, and the positioning clamping mechanism releases the cylindrical battery cell.

[0046] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cylindrical lithium-ion battery disassembly device, characterized in that: include A positioning assembly, comprising a positioning clamping mechanism for positioning and clamping a cylindrical lithium-ion battery and a rotating mechanism capable of driving the positioning clamping mechanism to rotate; The cutting assembly includes a tool holder and a driving mechanism. The driving mechanism drives the tool holder to move closer to or away from the cylindrical lithium-ion battery through a sliding structure. Two blades parallel to each other in the height direction are installed at the free end of the tool holder. The distance between the two blades is adjustable to adjust the cutting thickness. The installation position of the blade on the tool holder is also provided with a scale.

2. The cylindrical lithium-ion battery disassembly device according to claim 1, characterized in that: The positioning and clamping mechanism comprises: A positioning cylinder, the upper end surface of which is provided with a positioning groove for positioning the cylindrical lithium-ion battery; Three clamping jaws, the three clamping jaws are evenly distributed along the circumference of the positioning cylinder; The three-claw cylinder is respectively located at the lower ends of the three clamping claws and can respectively drive the three clamping claws to approach or move away from the cylindrical lithium-ion battery to clamp or release the cylindrical lithium-ion battery.

3. The cylindrical lithium-ion battery disassembly device according to claim 2, characterized in that: The rotating mechanism comprises: A rotating platform, the upper end of which is connected to the lower end of the positioning and clamping mechanism and is used to drive the cylindrical lithium-ion battery to rotate; A base is provided with a servo motor I installed in the base, and an output end of the servo motor I is fixed to the lower end of the rotating platform to drive the rotating platform to rotate.

4. The cylindrical lithium-ion battery disassembly device according to claim 3, characterized in that: A lifting mechanism is also provided between the rotating platform and the positioning clamping mechanism. The lower end of the lifting mechanism is connected to the rotating platform through a connecting plate, and the upper end is fixed to the lower end of the positioning clamping mechanism, so as to drive the positioning clamping mechanism to rise and fall to adjust the height of the cylindrical lithium-ion battery after positioning.

5. The cylindrical lithium-ion battery disassembly device according to claim 1, characterized in that: The sliding structure comprises: The slide table extends in the front-to-back direction, and both sides of the slide table are provided with slide rails extending in the front-to-back direction; The two sides of the slider extend into the slide rails on the two sides of the slide table to slide respectively, a column is fixed on the upper end of the slider, and the mounting end of the tool holder is fixed on the upper end of the column.

6. The cylindrical lithium-ion battery disassembly device according to claim 5, characterized in that: The driving mechanism includes: a servo motor II and a lead screw nut structure, wherein the lead screw is rotatably arranged inside the slide and extends along the length direction of the slide, the nut is fixed at the lower end of the slider, the nut is threadedly connected to the lead screw, the output end of the servo motor II is connected to the lead screw, driving the lead screw to rotate, converting the rotational motion into linear motion, thereby driving the slider to slide back and forth in the slide rail, driving the blade to approach or move away from the cylindrical lithium-ion battery.

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